So much to catch up on................
When we left off I had finished the paint on the front frame rails and we are ready for final install of the front suspension, also the transfer case was ready to go in
Well the t case is in, I will get some pictures of that
Meanwhile I have been finishing the suspension install and have made LOTS of progress
Let's start with some pics!!
My notes from the last time I installed a 31 spline 8.8 into a lifted ranger (the 300K jasper 306 truck
v8 build here)
That is all we need to mock up and start welding!!
RuffStuff kit, some nice stuff!
U bolts are too short, its all right I can use them on an Explorer
the new spring perches come with tabs on them, these would fit a 3" axle tube nicely
Well our 31 spline 8.8 has 3.25" axle tubes, so off with the TWO END tabs, leave the middle for nice weld spacing
much better
Now to center the axle under the truck, and measure the pinion angle
I measure in from each backing plate and check my marks a couple of times
mock up rear axle loosely with new perches, stock blocks, new U bolts (12.5" long), and spring plates.
Once she is close to center I make sure the perches are in EXACTLY the same spot on the axle, distance from backing plates. I also check to ensure they are 38.5" apart center to center, This ensures our axle is centered and our leaf springs are straight
Perfect.
Now to set the pinion angle
Stock Ranger pinion angle is 7 degrees
I know from the last umpteen V8 4406 Rangers I have built that with a 2 u joint rear driveshaft (4406 slip yoke) we want to match the new pinion angle to the tail housing angle on the transfer case. Which is 7 degrees...
Now the Chevy leaf spring setup with the inverted rear shackle is a bit different from other rangers but I am still able to easily set my pinion angle at 7 degrees by measuring 0 degrees at the old explorer spring perches. I always leave the old explorer spring under perches on these axles because:
They have the bolts that retain our brake lines in place
They make an excellent spot for your floor jack
This truck MIGHT go spring under someday down the road
The ranger U bolts will clear every time, the explorer and ranger leaf spring center line distance is within 1/2"
Transfer case was installed
Tailhousing angle was checked
Pinion angle adjusted to exactly 7 degrees
Spring perches can now be tack welded to axle tubes
Time to mock up the new shock mounts